The essential oils of leaves and flowers of Peucedanum ruthenicum (M. Bieb.) Rochel (Umbelliferae) were prepared by hydrodistillation separately and analyzed by GC and GC-MS, and the composition of both essential oils were compared together. Sixteen and eleven compounds were identified in leaves and flowers essential oils representing 100% and 96.4% of total oils, respectively. Th...

published data on the effects of essential oils (eo) on in vivo nutrient digestibility in sheep are contradictory. in 2 experiments, the effect of thymol and carvacrol on nutrient digestibility was studied in sheep fed with high (70%) or low (52%) concentrate diets, using incomplete latin square designs. the essential oils were mixed with the concentrate portion of the diet at the rate of 0.0, ...

Acinetobacter baumannii is categorized as a red alert pathogen that is increasingly associated with a high mortality rate in infected patients due to its resistance to extensive antibiotics. In this study, we evaluated the antibacterial activities of some essential oils (Oliveria decumbens, Pelargonium graveolens, Eugenia caryophyllata, Ziziphora tenuir and Trachyspermum copticum oils) against ...

As part of an ongoing research program to identify active mosquito repellents, Monarda bradburiana Beck and Monarda fistulosa L. essential oils showed good repellent activity with minimum effective dosages (MED) of 0.055 ± 0.036 and 0.078 ± 0.027 mg/cm(2), respectively, compared to reference standard N,N-diethyl-3-methylbenzamide (DEET) (0.039 ± 0.014 mg/cm(2)). Systematic bioassay-guided fract...

strawberry has a short shelf life and since it is consumed as fresh, the use of healthy and natural methods to increase its postharvest life is necessary. in this study, effect of different levels of thymol and menthol essential oils (0 (distillated water, control), 5, 10 and 15 μl) in the packaging with celofan as fumigation on postharvest maintenance quality of strawberries was studied. quali...

in this study, antimicrobial activity of chitosan and whey protein isolate edible films incorporated with different concentrations of zataria multiflora boiss essential oil ;zeo (1%, 2%, 3% and 4% v/v) and zataria multiflora boiss essential oil nanoliposome (0, 1, 2, 3 and 4%) against  listeria monocytogenes (atcc 19118), bacillus cereus (atcc 11778), staphylococcus aureus (atcc 65138), escheri...

Listeria monocytogenes is one of the major causes of infections in developing countries. In this study, chemical composition and anti-listerial effect of the essential oil of Zataria multiflora Boiss. alone and in combination with monolaurin were evaluated at different pH values (5, 6, and 7) and temperatures (5 ˚C and 30 ˚C). Chemical composition of Zataria multiflora Boiss. essential oil was ...

in this study, combined effect of two essential oils, thymol and carvacrol, with different concentrations in two methods on gladiolous grandiflorous l. was investigated based on a completely randomized design with 3 replicates and four flower in each replicate. sansusi variety applied that was red. in short term method, different concentrations of thymol and carvacrolin including 25+25, 50+50 a...

The essential oils of Peucedanum ruthenicum M. Bieb. (Umbelliferae) leaves, flowers and fruits were prepared by hydrodistillation and analyzed by GC and GC-MS and the composition of the three essential oils were compared. Thirty-three, thirty-seven and thirty-one compounds were identified in leaves, flowers and fruits essential oils representing 89.13%, 88.66% and 76.45% of total oils respectiv...